Video editing tools
that run in your browser
The core cuts and fixes: trim the part you want, crop and rotate, join clips, loop or reverse them, and change the speed. Stack any of them together and export once.
Editing tools
Trim / cut
Keep only the part you needCut the start or end off any video in seconds. Frame-accurate, no re-encoding for simple cuts, no watermark — and your video is never uploaded.
Open Trim / cutCrop
Cut away the edgesCrop out black bars, watermarks or distractions. Drag the box, lock a shape like 1:1 or 9:16, and export. Free, no watermark, no upload.
Open CropRotate / flip
Fix sideways videosFix a sideways or upside-down video in one tap. Rotate 90° or 180°, mirror or flip it — free, no watermark, and nothing is uploaded.
Open Rotate / flipChange speed
Slow-mo or time-lapseSpeed up or slow down any video from 0.25× to 4×, with natural-sounding voices. Make slow motion or time-lapses free, with no watermark.
Open Change speedMerge videos
Join clips into oneJoin several clips into one video in any order. Different sizes are fitted automatically. Free, no watermark, and nothing is uploaded.
Open Merge videosLoop
Repeat a clipRepeat a short clip 2 to 20 times in one video — for backgrounds, displays and memes. Free, no watermark, never uploaded.
Open LoopReverse video
Play it backwardsPlay any clip backwards — with the sound reversed or removed. Works with MP4, MOV and WebM up to 3 minutes. Free, no watermark.
Open Reverse videoPicture-in-picture
Small video in the cornerPut a small video in the corner of another — for reactions, tutorials and commentary. Choose the corner, size and sound. Free, no upload.
Open Picture-in-pictureBrowse by category
Questions
Anything else? Write to contact@doetra.com.
Can I use several editing tools on one video?
Yes — add as many edits as you like to the stack. They are all applied in a single export.
Do I need to install anything?
No. Everything runs in Chrome, Edge, Safari or Firefox on your phone or computer.
Is Doetra Video Studio really free?
Yes — every tool is free with no watermark, no signup and no file-size paywall. Your own device does the processing, so there is no server cost to pass on to you.
Are my videos uploaded anywhere?
No. Videos are opened, edited and exported entirely inside your browser. Nothing is sent to a server, which also makes it much faster than tools that make you upload first.
Can I combine several edits?
Yes — that is the idea. Drop your video once, stack edits like trim, resize for Reels, add text and fit under 16 MB, then export once. Every edit is applied in a single pass, so it is fast and loses less quality.